What do you do if you're a known patent troll and a major company announces a new device that is sure to sell millions of units? Try to sue the heck out of them, of course. That's exactly what's going on with Amazon's upcoming Kindle Fire, the still-unreleased tablet from the online retail giant.

The story goes a little something like this: Amazon announces the Fire for an ultra-affordable price. Everyone is happy and wants this new device, so pre-orders are through the roof.

Yesterday a German court sided with Apple against Samsung, disallowing the sale of Galaxy Tab 10.1 units in the European Union. Buried deep within this filing is mention of yet another complaint -- but this one is against Motorola, allegedly over the design of the XOOM.

This has been a back-and-forth battle between the two companies for sometime now, with Moto originally going after Apple for violating 18 patents in iOS and some Macs back in October of 2010.